![tex4ht:使用 tikzexternalize 仍然包含 svg,而不是 png](https://linux22.com/image/441067/tex4ht%EF%BC%9A%E4%BD%BF%E7%94%A8%20tikzexternalize%20%E4%BB%8D%E7%84%B6%E5%8C%85%E5%90%AB%20svg%EF%BC%8C%E8%80%8C%E4%B8%8D%E6%98%AF%20png.png)
我正在使用make4ht
从包含图像的 .tex 文件生成 HTML tikz
。
我将tikzexternalize
命令与代码一起使用Htlatex 和 Tikz 有时会创建错误的 svg确保图像作为.png
文件包含在 HTML 中。
最小工作示例
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{external}
\ifdefined\HCode
% this part is activated with make4ht
\tikzexternalize[mode=only graphics]
\tikzset{png export/.style={
/pgf/images/external info,
/pgf/images/include external/.code={%
\includegraphics{##1.png},
},
},
png export,
}
\else
% this part is activated with pdflatex
\tikzexternalize
\tikzset{pdf export/.style={
/pgf/images/external info,
/pgf/images/include external/.code={%
\includegraphics{##1.pdf},
},
},
pdf export,
}
\fi
\begin{document}
\begin{tikzpicture}
\draw (0,0) -- (0,1) -- (1,1) -- (1,0) -- (0,0);
\end{tikzpicture}
\end{document}
汇编
我使用以下命令来生成myfile-figure0.pdf
然后图像魔法生产myfile-figure0.png
:
pdflatex --shell-escape myfile
magick.exe myfile-figure0.pdf myfile-figure0.png
然后我用
make4ht -m draft myfile.tex
生成以下 HTML
<!DOCTYPE html>
<html lang='en-US' xml:lang='en-US'>
<head><title></title>
<meta charset='utf-8' />
<meta content='TeX4ht (https://tug.org/tex4ht/)' name='generator' />
<meta content='width=device-width,initial-scale=1' name='viewport' />
<link href='myfile.css' rel='stylesheet' type='text/css' />
<meta content='myfile.tex' name='src' />
</head><body>
<!-- l. 29 --><p class='noindent'><img alt=',
' src='myfile0x.svg' />
</p>
</body>
</html>
问题
我如何配置我的构建过程,以便
<img alt=',
' src='myfile0x.svg' />
我收到
<img alt=',
' src='myfile-figure0.png' />
以供参考
我使用的是 texlive 2021 和 make4ht 版本 0.3j。在 texlive 2020 及之前的版本中,我没有遇到此问题,并且我的设置给出了我想要的输出。
也许我的问题与以下代码片段有关,myfile.log
我在 texlive 2020 中也没有收到该代码片段。
(\end occurred inside a group at level 1)
### simple group (level 1) entered at line 22 ({)
### bottom level
答案1
这是因为 TeX4ht 现在pgfsys-dvisvgm4ht.def
默认使用驱动程序。它不支持该external
库。以下是修复此问题的版本:
% Copyright 2021 by Michal Hoftich
% Copyright 2006 by Till Tantau
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file doc/generic/pgf/licenses/LICENSE for more details.
\ProvidesFileRCS{pgfsys-dvisvgm4ht.def}
% Driver commands for tex4ht
%
% Load common pdf commands:
%
% we load the dvips driver by default. it doesn't support patterns and some other stuff,
% but it handles better nested images and some formatting. if you use patterns or if you
% have other issues with the default method, pass the "tikz-dvisvgm" option to make4ht.
\ifdefined\ifOption
\ifOption{tikz+}{\input pgfsys-dvisvgm.def}{\input pgfsys-dvips.def}
\else
% load the dvips driver by default
\input pgfsys-dvips.def
\fi
\def\texfourht@tikz@begin{%
\bgroup%
\def\run@pict@cmd{}% insert the \Picture hooks only in the top nesting level
\def\end@pict@cmd{}%
\ifdefined\EndPicture\else% We are already inside command that uses \Picture
\ifdefined\inside@pict@cmd\else% handle nested uses
\ifdefined\tikzexternalize\else% Support externalize library
\def\run@pict@cmd{\Picture*}%
\def\end@pict@cmd{\EndPicture}%
\fi\fi\fi%
% command used to detect nesting
\def\inside@pict@cmd{}%
\csname a:tikzpicture\endcsname%
}
\def\texfourht@tikz@end{%
\csname b:tikzpicture\endcsname%
\egroup%
}
\AtBeginDocument{%
\NewConfigure{tikzpicture}{2}%
\catcode`\:=11%
\Configure{tikzpicture}{%
\protect\csname nested:math\endcsname% support display math
\run@pict@cmd{}%
}{\end@pict@cmd}
% configure the output picture format to svg, as it will require dvisvgm
% post processing.
\Configure{Picture}{.svg}%
% insert tex4ht hooks around TikZ picture box
\def\pgfsys@typesetpicturebox#1{%
\texfourht@tikz@begin%
\orig@pgfsys@typesetpicturebox{#1}%
\texfourht@tikz@end%
}
%
\ConfigureEnv{tikzpicture}{\texfourht@tikz@begin}{\texfourht@tikz@end}{}{}%
\ConfigureEnv{pgfpicture}{\texfourht@tikz@begin}{\texfourht@tikz@end}{}{}%
\catcode`\:=12%
}
% Make the code inserted by tex4ht configurable
%
\let\orig@pgfsys@typesetpicturebox\pgfsys@typesetpicturebox
%\def\pgf@sys@postscript@header#1{{\special{! #1}}}
\endinput
%%% Local Variables:
%%% mode: latex
%%% End:
我还发现你的 TeX 文件中有一个问题。\includegraphics
命令后有一个虚假的逗号。它以 HTML 代码结尾。这是一个修复版本:
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{external}
\ifdefined\HCode
% this part is activated with make4ht
\tikzexternalize[mode=only graphics]
\tikzset{png export/.style={
/pgf/images/external info,
/pgf/images/include external/.code={%
\includegraphics{##1.png}
},
},
png export,
}
\else
% this part is activated with pdflatex
\tikzexternalize
\tikzset{pdf export/.style={
/pgf/images/external info,
/pgf/images/include external/.code={%
\includegraphics{##1.pdf},
},
},
pdf export,
}
\fi
\begin{document}
\begin{tikzpicture}
\draw (0,0) -- (0,1) -- (1,1) -- (1,0) -- (0,0);
\end{tikzpicture}
\end{document}
顺便说一句,TeX4ht 内置了对外部化库的支持,它始终需要图片模式。当前版本不知何故出现问题,但您可以尝试此修复tikz-hooks.4ht
:
% tikz-hooks.4ht (2021-10-21-14:55), generated from tex4ht-4ht.tex
% Copyright 2021 TeX Users Group
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3c of this license or (at your option) any
% later version. The latest version of this license is in
% http://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions
% of LaTeX version 2005/12/01 or later.
%
% This work has the LPPL maintenance status "maintained".
%
% The Current Maintainer of this work
% is the TeX4ht Project <http://tug.org/tex4ht>.
%
% If you modify this program, changing the
% version identification would be appreciated.
\immediate\write-1{version 2021-10-21-14:55}
\ifdefined\pgfsysdriver\else%
\typeout{*****************************}
\typeout{TeX4ht info: Using dvisvgm4ht TikZ driver. Put \detokenize{\def\pgfsysdriver{driver-name}} to your
document before use of TikZ if you want to another driver. Use tikz+ option if your TikZ pictures use patterns.}%
\def\pgfsysdriver{pgfsys-dvisvgm4ht.def}%
\fi%
\:AtEndOfPackage{%
\let\use:tikzlibrary\usetikzlibrary
\def\find:externalize#1external#2\@nil{%
\ifdefined\tikzexternalize
\let\tikz:externalize\tikzexternalize
\renewcommand\tikzexternalize[1][]{\tikz:externalize[##1,mode=only graphics]}
\tikzset{%
tex4ht inc/.style={%
/pgf/images/include external/.code={%
\includegraphics[]{####1.pdf}%
}%
}%
}%
\tikzset{tex4ht inc}%
\fi%
}
\append:defI\use@@tikzlibrary{\find:externalize##1external\@nil}%
}
然后您可以简化您的文档:
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{external}
\tikzexternalize
\tikzset{pdf export/.style={
/pgf/images/external info,
/pgf/images/include external/.code={%
\includegraphics{##1.pdf}
},
},
pdf export,
}
\begin{document}
\begin{tikzpicture}
\draw (0,0) -- (0,1) -- (1,1) -- (1,0) -- (0,0);
\end{tikzpicture}
\end{document}
结果如下: